On 30 Dec 2021, Kao Zi Yao broke the record solving a single 15-sliding puzzle in 8.85 sec. On 3 Jun 2022, he managed to solve ten similar puzzles in 1 min 51.33 sec. At the Mofunland Cruise Open on 19 Jun 2023, the 10-year-old boy solved the bigger 48-sliding puzzle in the time of 1 min 53 sec. All the tiles were scrambled and he had to slide one tile at a time to arrange all the numbers in ascending order.
